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First it is a moot point if CH3 is a molecule or not. Think of it as the empirical formula of ethane C2H6. In the compounds CO2 and H2O oxygen has the oxidation number of -2; you seem to have understo …

This equation cannot be balanced unless one is given the exact stoichiometry and the mechanism is known. It might be reasonable to think that O2 could oxidize PbS: PbS + 2O2 = PbSO4 and knowing 2O3 = …

The reaction is a disproportionation Au+ gives Au and Au+3 Oxidation: Au+ = Au+3 + 2e-; Reduction: Au+ + e- = Au. Multiply reduction by 2 to balance charge and add equations. 3Au+ = 2Au + Au+3 These …

Oxyanions have a central atom surrounded by a number of more electronegative O atoms and the central atom is significantly positively charged. They are subject to reduction. There are three main facto …

A pure metal immersed in pure water establishes a potential with the liquid. Current understanding is that ions migrate into the water and electrons accumulate on the metal. If[when] the electrons re …

Redox reactions with poly atomic ions such as MnO4- or CrO4= in water solution need acid to react with the oxygens. This acid comes from H+ in acidic solution or H2O in neutral or basic solutions. … Do learn the various methods, oxidation number change, redox half reaction balancing, the chemical method I illustrated that is particularly useful in changes in functional groups in organic compounds. …

Oxidation numbers can be very arbitrary and are a tool, not a be all and end all, describing a redox reaction. …

It depends on the use and exact reaction. Different oxidizers have different potentials [strengths] and react by different mechanisms and cause different reactions. If the oxidizing properties of perm …

You answer your own question! Hypo phosphorous acid H3PO2 is readily oxidized to phosphorous acid, H3PO3 [really H2HPO3] even in acidic solution [there probably is a limit]. Phosphorous acid is less r …

A balanced chemical or physical process requires conservation of Mass-Energy and Momentum. The balanced chemical equation must demonstrate that. The chemical equation is a STATE FUNCTION; it does not …

An active metal such as iron, zinc, Aluminum, magnesium reacts slowly with water to form H2 and the metal ion or oxide-hydroxide. The rates and products depend on the hydrogen ion concentration. There …

Chemical reactions are reactions of MOLECULES. A useful definition being the identity of a chemical species in the system being studied. Oxidation numbers are an artifact invented to simplify certain …

Macro- or microscopic amounts of material contain huge numbers of molecules. A very negative oxidation potential [calculate the potential for gold and O2in water] means that the reaction proceeds unti …

The cell description is somewhat vague and leaves much to the imagination; it indicates a liquid junction to a solid-state reaction. The Ag-AgCl electrode is reversible to the chloride ion. Its typica …

Those are not Coupled reactions; the burning of carbon simply supplies the energy to decompose the carbonate. Another way of looking at it would be if you were the fireman on an old steam locomotive w …